Microplastics promote methane emission in estuarine and coastal wetlands

Water Research, Journal Year: 2024, Volume and Issue: 259, P. 121853 - 121853

Published: May 29, 2024

Language: Английский

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Biological bromate reduction coupled with in situ gas fermentation in H2/CO2-based membrane biofilm reactor

Water Research, Journal Year: 2024, Volume and Issue: 254, P. 121402 - 121402

Published: Feb. 29, 2024

Bromate, a carcinogenic contaminant generated in water disinfection, presents pressing environmental concern. While biological bromate reduction is an effective remediation approach, its implementation often necessitates the addition of organics, incurring high operational costs. This study demonstrated efficient using H

Language: Английский

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Anaerobic oxidation of methane (AOM) driven by multiple electron acceptors in constructed wetland and the related mechanisms of carbon, nitrogen, sulfur cycles

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 433, P. 133663 - 133663

Published: Nov. 18, 2021

Language: Английский

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Simultaneous dissolved methane and nitrogen removal from low-strength wastewater using anaerobic granule-based sequencing batch reactor

Water Research, Journal Year: 2023, Volume and Issue: 242, P. 120194 - 120194

Published: June 8, 2023

Anaerobic treatment of mainstream wastewater has been proposed as a promising solution to enhance bioenergy recovery for plants (WWTPs). However, the limited organics downstream nitrogen removal and emissions dissolved methane into atmosphere are two major barriers broad application anaerobic treatment. This study aims develop novel technology overcome these challenges by achieving simultaneous nitrogen, unravel microbial competitions underpinning process from kinetic perspectives. To this end, laboratory granule-based sequencing batch reactor (GSBR) coupling anammox nitrite/nitrate-dependent oxidation (n-DAMO) microorganisms was developed treat mimicking effluent The GSBR achieved high-level rates (> 250 mg N/L/d > 65 CH4/L/d) efficiencies 99% total 90% removal) during long-term demonstration. availability different electron acceptors (nitrite or nitrate) imposed significant effects on ammonium methane, well communities, abundance expression functional genes. analysis apparent kinetics showed that bacteria had higher nitrite affinity than n-DAMO bacteria, while archaea. These underpin observation is preferred acceptor removing nitrate. findings not only extend applications in removal, but also provide insights cooperation competition granular systems.

Language: Английский

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Anaerobic oxidation of methane mediated by microbial extracellular respiration

Environmental Microbiology Reports, Journal Year: 2021, Volume and Issue: 13(6), P. 790 - 804

Published: Sept. 15, 2021

Anaerobic oxidation of methane (AOM) can be microbially mediated by the reduction different terminal electron acceptors. AOM coupled to sulfate, manganese/iron oxides, humic substances, selenate, arsenic and other artificial extracellular acceptors are recognized as processes associated with microbial respiration. In these processes, methane-oxidizing archaea transfer electrons external or interdependent species, which mechanistically dependent on versatile (EET) pathways. This review compiles recent progress in research electromicrobiology based catalogue Naturally distributed artificially constructed EET-mediated is summarized, discussion their environmental importance application potentials. The diversity responsible microorganisms involved discussed both putative bacterial partners. More importantly, highlights deficiencies our understanding EET pathways AOM, raising open questions for future research.

Language: Английский

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A novel sulfide-driven denitrification methane oxidation (SDMO) system: Operational performance and metabolic mechanisms

Water Research, Journal Year: 2022, Volume and Issue: 222, P. 118909 - 118909

Published: July 26, 2022

Language: Английский

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Heterotrophic denitrification: An overlooked factor that contributes to nitrogen removal in n-DAMO mixed culture

Environmental Research, Journal Year: 2022, Volume and Issue: 216, P. 114802 - 114802

Published: Nov. 11, 2022

Language: Английский

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Nitrate/nitrite-dependent anaerobic oxidation of methane (N-AOM) as a technology platform for greenhouse gas abatement in wastewater treatment plants: State-of-the-art and challenges

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 319, P. 115671 - 115671

Published: July 8, 2022

Language: Английский

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Significance of anaerobic oxidation of methane (AOM) in mitigating methane emission from major natural and anthropogenic sources: a review of AOM rates in recent publications

Environmental Science Advances, Journal Year: 2022, Volume and Issue: 1(4), P. 401 - 425

Published: Jan. 1, 2022

AOM rates in literature were analyzed and anaerobic methanotrophs significantly cut methane emissions oceans but not wetlands, rice paddy, fresh water. The trophic metabolic patterns of microorganisms may be limiting the rates.

Language: Английский

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Prospect of denitrifying anaerobic methane oxidation (DAMO) application on wastewater treatment and biogas recycling utilization

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 905, P. 167142 - 167142

Published: Sept. 16, 2023

Language: Английский

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